Home / 13,917.79-19,206.89-7,630.21

Finding the Fourth Proportional to 13,917.79, 19,206.89 and 7,630.21

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Solution

The fourth proportional to 13,917.79, 19,206.89 and 7,630.21 is: 10,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.79 : 19,206.89 = 7,630.21 : x
  2. Step 2: Convert to fraction form
    13,917.79/19,206.89 = 7,630.21/x
  3. Step 3: Cross multiply
    13,917.79x = 19,206.89 × 7,630.21
  4. Step 4: Simplify right side
    13,917.79x = 146,552,604.15
  5. Step 5: Solve for x
    x = 146,552,604.15/13,917.79
  6. Step 6: Final answer
    x = 10,529.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.